Knowledge and character play similarly important roles in knowledge organizations. This paper aims to propose a novel management theory, Intellectual Management (IlM), which is an integration of knowledge management (KM) and character management (CM). Through case study, the management practices in three famous Chinese enterprises were summarized and comparatively analyzed. Taking the results and findings of case study into consideration, the authors built a theoretical model of IlM. As a conceptual framework, the IlM model is proposed and analyzed in terms of definition, function, process, tool, and feature. It was found that (1) IlM is rich in meaning that is constituted of five management levels including component, structure, mode, method, and target; (2) IlM would be embedded into the existing management functions such as strategizing, organizing, decision-making, motivating and controlling, and management subprocesses including research and development (R&D), logistics, production, marketing and service; (3) an organization which properly engages in IlM would show some features, which could be introduced as evaluation criteria of IlM maturity; (4) the IlM could apply the prior management tools regarding to KM and CM or explore some new specific tool packages; and (5) currently, the organizational destiny is depended on the effective IlM which integrates and balances the roles of KM and CM. IlM is expected to be an effective management idea for knowledge-intensive organizations in future competitive environments.